// $Id: selop.cpp 1282 2006-06-09 09:46:49Z alex $ /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ /* //*/ #include "camtypes.h" //#include "selop.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "ophist.h" //#include "document.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "selstate.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "app.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "ensure.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "blobs.h" //#include "spread.h" - in camtypes.h [AUTOMATICALLY REMOVED] DECLARE_SOURCE("$Revision: 1282 $"); CC_IMPLEMENT_DYNCREATE(SelOperation, UndoableOperation) #define new CAM_DEBUG_NEW BOOL SelOperation::RenderEndSelStateBlobs; BOOL SelOperation::RenderStartSelStateBlobs; BOOL SelOperation::UndoRenderEndSelStateBlobs; BOOL SelOperation::UndoRenderStartSelStateBlobs; /******************************************************************************************** > SelOperation::SelOperation() Author: Simon_Maneggio (Xara Group Ltd) Created: 15/2/94 Inputs: - Outputs: - Returns: - Purpose: SelOperation constructor, calls the constructor of the base class Errors: - SeeAlso: - ********************************************************************************************/ SelOperation::SelOperation(): UndoableOperation() { m_bStartCalled = FALSE; } /******************************************************************************************** > SelOperation::~SelOperation() Author: Simon_Maneggio (Xara Group Ltd) Created: 15/2/94 Inputs: - Outputs: - Returns: - Purpose: SelOperation destructor Errors: - SeeAlso: - ********************************************************************************************/ SelOperation::~SelOperation() { } /******************************************************************************************** > BOOL SelOperation::DoStartSelOp(BOOL RenderEndSelStateBlobs, BOOL RenderStartSelBlobs = TRUE) Author: Simon_Maneggio (Xara Group Ltd) Created: 15/2/94 Inputs: RenderEndSelStateBlobs: Flag indicating if the blobs should be drawn for the end selection state or not. This flag should be set to TRUE if the bounds of all selected objects at the end of the operation are not invalidated. RenderStartSelBlobs: Flag indicating if the blobs should be drawn for the start selection state or not. This flag should be set to TRUE if the bounds of all selected objects at the start of an operation are not invalidated. All operations which insert a new object into the tree will have RenderStartSelBlobs set to TRUE. Outputs: - Returns: TRUE if successful, FALSE if memory ran out (call End) Purpose: This function must be called by all SelOperations. It does the following: Records the current selection status Errors: - SeeAlso: SelOperation::End() ********************************************************************************************/ BOOL SelOperation::DoStartSelOp(BOOL renderEndSelStateBlobs, BOOL renderStartSelBlobs, BOOL UndorenderEndSelStateBlobs, BOOL UndorenderStartSelBlobs) { SelOperation::RenderStartSelStateBlobs = renderStartSelBlobs; SelOperation::RenderEndSelStateBlobs = renderEndSelStateBlobs; if (UndorenderEndSelStateBlobs) SelOperation::UndoRenderEndSelStateBlobs = !renderEndSelStateBlobs; else SelOperation::UndoRenderEndSelStateBlobs = renderEndSelStateBlobs; if (UndorenderStartSelBlobs) SelOperation::UndoRenderStartSelStateBlobs = !renderStartSelBlobs; else SelOperation::UndoRenderStartSelStateBlobs = renderStartSelBlobs; // Create a SelectionState object ALLOC_WITH_FAIL(SelState, (new SelectionState()), this); if (SelState == NULL) { return FALSE; // Failure } // We have managed to create a SelectionState instance, now lets try and // record the current selections BOOL Success; CALL_WITH_FAIL(SelState->Record(), this, Success) if (!Success) // We failed to allocate enough memory to store the selection state { // There was insufficient memory to record the selections delete SelState; // Delete the selection state SelState = NULL; return FALSE; } // We have successfully managed to create a Selection state, create an action // to restore the selections when executed // Recorded the current selection state ok RestoreSelectionsAction* RestoreAct; ActionCode ActCode; // Attempt to initialise the action ActCode = RestoreSelectionsAction::Init(this, &UndoActions, SelState, FALSE, // Don't Toggle FALSE, FALSE, // The SelState is not shared UndoRenderStartSelStateBlobs, // Render the start blobs ? UndoRenderEndSelStateBlobs, // Render the end blobs ? FALSE, // End restore ( Action**)(&RestoreAct)); #if !defined(EXCLUDE_FROM_RALPH) if (RenderEndSelStateBlobs) { // Remove all existing blobs ENSURE(Camelot.FindSelection() != NULL, "There is no SelRange"); Node* SelNd = Camelot.FindSelection()->FindFirst(); if (SelNd != NULL) { Spread* SelSpread = (Spread*) SelNd->FindParent(CC_RUNTIME_CLASS(Spread)); ENSURE(SelSpread != NULL, "Could not find spread of selected item"); // Remove the blobs Camelot.GetBlobManager()->RenderOff(NULL, SelSpread); } } #endif if (ActCode == AC_FAIL) { delete SelState; // We won't be needing this return FALSE; } m_bStartCalled = TRUE; return TRUE; } /******************************************************************************************** > BOOL SelOperation::DoEndSelOp() Author: Simon_Maneggio (Xara Group Ltd) Created: 15/2/94 Inputs: - Outputs: - Returns: - Purpose: This function gets called automatically by End() It Invalidates the rectangle covered by the selection and its blobs Scope: protected Errors: - SeeAlso: - ********************************************************************************************/ BOOL SelOperation::DoEndSelOp() { // Create a SelectionState object ALLOC_WITH_FAIL(SelState, (new SelectionState()), this); if (SelState == NULL) { return FALSE; // Failure } // We have managed to create a SelectionState instance, now lets try and // record the current selections BOOL Success; CALL_WITH_FAIL(SelState->Record(), this, Success) if (!Success) // We failed to allocate enough memory to store the selection state { // There was insufficient memory to record the selections delete SelState; // Delete the selection state SelState = NULL; return FALSE; } // We have successfully managed to create a Selection state, create an action // to restore the selections when executed // Recorded the current selection state ok RestoreSelectionsAction* RestoreAct; ActionCode ActCode; // Attempt to initialise the action ActCode = RestoreSelectionsAction::Init(this, &UndoActions, SelState, FALSE, // Don't Toggle FALSE, FALSE, // The SelState is not shared UndoRenderStartSelStateBlobs, UndoRenderEndSelStateBlobs, TRUE, // restore at start of undo ( Action**)(&RestoreAct)); if (ActCode == AC_FAIL) { delete SelState; // We won't be needing this return FALSE; } // OK the operation should have finished playing with the selection states, so we can turn // the blob rendering back on. If the operation needs to render the end SelState blobs then // this is done. // If the operation needs to restore the blobs then do so #if !defined(EXCLUDE_FROM_RALPH) if (RenderEndSelStateBlobs) { ENSURE(Camelot.FindSelection() != NULL, "There is no SelRange"); Node* SelNd = Camelot.FindSelection()->FindFirst(); if (SelNd != NULL) { Spread* SelSpread = (Spread*) SelNd->FindParent(CC_RUNTIME_CLASS(Spread)); ENSURE(SelSpread != NULL, "Could not find spread of selected item"); // Put the blobs back Camelot.GetBlobManager()->RenderOn(NULL, SelSpread); } } #endif m_bStartCalled = FALSE; return TRUE; } /******************************************************************************************** > virtual void SelOperation::End() Author: Simon_Maneggio (Xara Group Ltd) Created: 15/2/94 Inputs: - Outputs: - Returns: - Purpose: Calls DoEndSelOp(), then Operation::End() Errors: - SeeAlso: - ********************************************************************************************/ void SelOperation::End() { if (OpStatus == DO && (!OpFlags.Failed)) { DoEndSelOp(); // We don't want to perform this if we are undoing or } Operation::End(); }